Cubed (5)
I believe the answer is:
diced
'cubed' is the definition.
('dice' can be a synonym of 'cube')
This is all the clue.
(Other definitions for diced that I've seen before include "Cubed" , "Gambled or cut into cubes" , "Chopped into cubes" , "Risked" , "Played with small cubes" .)